但是在真机上运行后提示很多这样的错误： Could not find file: /Users/vsc/Library/Developer/Xcode/DerivedData/EcolabHD-desbfrelqynwuvbvdflrjyfplwtx/Build/Products/Debug-iphoneos/EcolabHD.app/checking.png Command /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/copypng emitted errors but did not return a nonzero exit code to indicate failure

但是运行没问题，这样会有什么后果吗？求大腿解惑。真机是iPad mini。